A ladder test gone wrong?
Moderator: Mod
-
- Posts: 1336
- Joined: Fri Jan 25, 2013 8:18 pm
- Location: Branxton NSW
A ladder test gone wrong?
Hi All
I was testing a new barrel this week with some different components and thought I’d try a ladder test.
7saum at 900 yds
Load - 180 hyb with 2209 55.3 to 56.5 in .3 gn increments.
My issue with the test was the last 4 went into approx 1”
Weird hey
I was testing a new barrel this week with some different components and thought I’d try a ladder test.
7saum at 900 yds
Load - 180 hyb with 2209 55.3 to 56.5 in .3 gn increments.
My issue with the test was the last 4 went into approx 1”
Weird hey
We don't rise to the level of our expectations, we fall to the level of our training. Archilochos 680-645 BC
-
- Posts: 322
- Joined: Tue Dec 14, 2010 10:49 am
- Location: Barossa Sth Australia
Re: A ladder test gone wrong?
Hi Tim
Wow 1.2 grains of powder and they all went into a 1 inch group !!!
I do the same but with 2 shots at each load to confirm I am not dreaming when I get groups like this.
What was your speed around the 2970 fps with that load of 09?
Looks like a hummer barrel.
Pete
Wow 1.2 grains of powder and they all went into a 1 inch group !!!
I do the same but with 2 shots at each load to confirm I am not dreaming when I get groups like this.
What was your speed around the 2970 fps with that load of 09?
Looks like a hummer barrel.
Pete
-
- Posts: 1336
- Joined: Fri Jan 25, 2013 8:18 pm
- Location: Branxton NSW
Re: A ladder test gone wrong?
Hey Peter
56.2 = 2960
56.5 = 2981
I’m guessing there won’t be a repeat of that result
56.2 = 2960
56.5 = 2981
I’m guessing there won’t be a repeat of that result
We don't rise to the level of our expectations, we fall to the level of our training. Archilochos 680-645 BC
-
- Posts: 341
- Joined: Fri Jul 22, 2005 9:29 pm
- Location: Regional Vic.
Re: A ladder test gone wrong?
I would definitely be doing a retest with a higher round count to validate
-
- Posts: 1336
- Joined: Fri Jan 25, 2013 8:18 pm
- Location: Branxton NSW
Re: A ladder test gone wrong?
agro wrote:I would definitely be doing a retest with a higher round count to validate
For sure- early days with this barrel
We don't rise to the level of our expectations, we fall to the level of our training. Archilochos 680-645 BC
-
- Posts: 112
- Joined: Mon Mar 28, 2011 7:37 pm
- Location: sawyers gully
Re: A ladder test gone wrong?
Tim It was more like 4 into 1/2 inch at a 5 shot group of under 3 inch and 900. If you whant to sell that barrel I will make you a fair offer..
-
- Posts: 1336
- Joined: Fri Jan 25, 2013 8:18 pm
- Location: Branxton NSW
Re: A ladder test gone wrong?
After 1500 rounds I’ll get back to you
We don't rise to the level of our expectations, we fall to the level of our training. Archilochos 680-645 BC
-
- Posts: 1049
- Joined: Fri Jun 13, 2008 12:22 am
-
- Posts: 119
- Joined: Thu Feb 26, 2015 12:12 am
Re: A ladder test gone wrong?
saum2 wrote:Gday Tim, is the 2209 old batch or the new BTI powder?
Geoff
Ok I'll bite what is BTI
-
- Posts: 1336
- Joined: Fri Jan 25, 2013 8:18 pm
- Location: Branxton NSW
Re: A ladder test gone wrong?
dazza284 wrote:saum2 wrote:Gday Tim, is the 2209 old batch or the new BTI powder?
Geoff
Ok I'll bite what is BTI
Ballistic temperature independence
Something added to make it more temperature stable- apparently
Yes this batch is bti
We don't rise to the level of our expectations, we fall to the level of our training. Archilochos 680-645 BC
-
- Posts: 7501
- Joined: Wed Jun 15, 2005 8:22 pm
- Location: Maffra, Vic
Re: A ladder test gone wrong?
Tim N wrote:...Something added to make it more temperature stable- apparently...
Did I read somewhere that it was required to address a US ban on some chemical ingredients in the old powder?
-
- Posts: 2323
- Joined: Sun Feb 12, 2006 7:23 pm
- Location: Singleton NSW
Re: A ladder test gone wrong?
AlanF wrote:Tim N wrote:...Something added to make it more temperature stable- apparently...
Did I read somewhere that it was required to address a US ban on some chemical ingredients in the old powder?
Not U.S ban, but Europe and U.K ban.
-
- Posts: 2323
- Joined: Sun Feb 12, 2006 7:23 pm
- Location: Singleton NSW
Re: A ladder test gone wrong?
Tim N wrote:Hi All
I was testing a new barrel this week with some different components and thought I’d try a ladder test.
7saum at 900 yds
Load - 180 hyb with 2209 55.3 to 56.5 in .3 gn increments.
My issue with the test was the last 4 went into approx 1”
Weird hey
Yea, if a new barrel doesnt behave properly in ladder tests early on, you are only wasting components firing more out of it.
Im after a fire forming barrel, so I will swap you a jug of powder for it if you like.
-
- Posts: 1049
- Joined: Fri Jun 13, 2008 12:22 am
Re: A ladder test gone wrong?
Tim N wrote:dazza284 wrote:saum2 wrote:Gday Tim, is the 2209 old batch or the new BTI powder?
Geoff
Ok I'll bite what is BTI
Ballistic temperature independence
Something added to make it more temperature stable- apparently
Yes this batch is bti
Interesting as the new batch I have is over a gr faster than my old batch.
-
- Posts: 1336
- Joined: Fri Jan 25, 2013 8:18 pm
- Location: Branxton NSW
Re: A ladder test gone wrong?
If my last 4 groove bartlein is anything to go by-it sped up by over 1 gn in the first 150 rounds
We don't rise to the level of our expectations, we fall to the level of our training. Archilochos 680-645 BC
Return to “Equipment & Technical”
Who is online
Users browsing this forum: Caska, Google [Bot] and 129 guests